{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "discover vulnerability", "arguments": ["discoverer", "time", "common vulnerabilities and exposures", "supported platform", "vulnerable system version", "vulnerable system owner", "vulnerability", "capabilities", "vulnerable system"]}], "input": "The vulnerability has n't been publicly disclosed ."}
{"discover vulnerability": [{"discoverer": "NAN", "time": "NAN", "common vulnerabilities and exposures": "NAN", "supported platform": "NAN", "vulnerable system version": "NAN", "vulnerable system owner": "NAN", "vulnerability": "The vulnerability", "capabilities": "NAN", "vulnerable system": "NAN"}]}